Abstract
Abstract BACKGROUND Zinc (Zn) fertilization has been reported to improve the quality and storability of many fruits, but the mechanism had not been systematically studied. In this study, the effect of preharvest 0.2% zinc sulfate (ZnSO 4 ) spray on the storability of longan fruits was investigated. RESULTS The preharvest ZnSO 4 spray did not significantly influence the quality but increased the Zn content in longan pericarp by 12.5‐fold. More importantly, the treatment significantly reduced the rotting rate, pericarp browning, and aril breakdown of longan fruits stored at room temperature and low temperature. Physiological and biochemical results indicated that the treatment resulted in higher water retention capacity and inhibited the degradation of cellulose, pectin, flavonoid, and phenolics of longan pericarp at the late stages of storage. Consistent with these results, the activity of cellulase, polygalacturonase, polyphenol oxidase, and lipoxygenase was significantly inhibited in the ZnSO 4 ‐treated longan pericarp at the late stages of storage. CONCLUSION Higher Zn content in the ZnSO 4 ‐treated longan pericarp might help to enhance the resistance against microbial infection, inhibit the hydrolysis of cell wall components, and thus effectively protected the cell wall components, maintained the cellular compartmentation, and prevented the phenolics and flavonoid from degradation by browning‐related enzymes. © 2018 Society of Chemical Industry
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Claims 9
Claim · model-written summary
The preharvest ZnSO4 spray did not significantly influence longan fruit quality.
- Taxon
- longan
Dimocarpus longane0 - Treatment
- preharvest 0.2% zinc sulfate (ZnSO 4 ) spraye0
- Outcome
- qualitye1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“preharvest 0.2% zinc sulfate (ZnSO 4 ) spray on the storability of longan fruits”
e1“The preharvest ZnSO 4 spray did not significantly influence the quality”
Claim · model-written summary
The preharvest ZnSO4 spray increased Zn content in longan pericarp by 12.5-fold.
- Taxon
- longanDimocarpus longane0
- Treatment
- preharvest 0.2% zinc sulfate (ZnSO 4 ) spraye0
- Outcome
- Zn content in longan pericarpe2
- Direction
- increasede2
- Value
- 12.5‐folde2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“preharvest 0.2% zinc sulfate (ZnSO 4 ) spray on the storability of longan fruits”
e2“increased the Zn content in longan pericarp by 12.5‐fold”
Claim · model-written summary
The preharvest ZnSO4 spray significantly reduced rotting rate, pericarp browning and aril breakdown of longan fruit in storage.
- Taxon
- longanDimocarpus longane0
- Treatment
- preharvest 0.2% zinc sulfate (ZnSO 4 ) spraye0
- Outcome
- rotting rate, pericarp browning, and aril breakdowne3
- Direction
- reducede3
- Setting
- room temperature and low temperaturee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“preharvest 0.2% zinc sulfate (ZnSO 4 ) spray on the storability of longan fruits”
e3“the treatment significantly reduced the rotting rate, pericarp browning, and aril breakdown of longan fruits stored at room temperature and low temperature”
Claim · model-written summary
The ZnSO4 treatment resulted in higher water retention capacity of longan pericarp.
- Taxon
- longanDimocarpus longane0
- Treatment
- preharvest 0.2% zinc sulfate (ZnSO 4 ) spraye0
- Outcome
- water retention capacitye4
- Direction
- highere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“preharvest 0.2% zinc sulfate (ZnSO 4 ) spray on the storability of longan fruits”
e4“the treatment resulted in higher water retention capacity”
Claim · model-written summary
The ZnSO4 treatment inhibited the degradation of cellulose and pectin in longan pericarp at the late stages of storage.
- Taxon
- longanDimocarpus longane0
- Treatment
- preharvest 0.2% zinc sulfate (ZnSO 4 ) spraye0
- Outcome
- degradation of cellulose, pectine5
- Direction
- inhibitede5
- Qualifier
- at the late stages of storagee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“preharvest 0.2% zinc sulfate (ZnSO 4 ) spray on the storability of longan fruits”
e5“inhibited the degradation of cellulose, pectin, flavonoid, and phenolics of longan pericarp at the late stages of storage”
Claim · model-written summary
The ZnSO4 treatment inhibited the degradation of flavonoid and phenolics in longan pericarp at the late stages of storage.
- Taxon
- longanDimocarpus longane0
- Treatment
- preharvest 0.2% zinc sulfate (ZnSO 4 ) spraye0
- Outcome
- flavonoid, and phenolicse5
- Direction
- inhibitede5
- Qualifier
- at the late stages of storagee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“preharvest 0.2% zinc sulfate (ZnSO 4 ) spray on the storability of longan fruits”
e5“inhibited the degradation of cellulose, pectin, flavonoid, and phenolics of longan pericarp at the late stages of storage”
Claim · model-written summary
The ZnSO4 treatment significantly inhibited the activity of cellulase, polygalacturonase and polyphenol oxidase in longan pericarp at the late stages of storage.
- Taxon
- longanDimocarpus longane0
- Treatment
- preharvest 0.2% zinc sulfate (ZnSO 4 ) spraye0
- Outcome
- activity of cellulase, polygalacturonase, polyphenol oxidasee6
- Direction
- inhibitede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“preharvest 0.2% zinc sulfate (ZnSO 4 ) spray on the storability of longan fruits”
e6“the activity of cellulase, polygalacturonase, polyphenol oxidase, and lipoxygenase was significantly inhibited”
Claim · model-written summary
The ZnSO4 treatment significantly inhibited lipoxygenase in longan pericarp at the late stages of storage.
- Taxon
- longanDimocarpus longane0
- Treatment
- preharvest 0.2% zinc sulfate (ZnSO 4 ) spraye0
- Outcome
- lipoxygenasee6
- Direction
- inhibitede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“preharvest 0.2% zinc sulfate (ZnSO 4 ) spray on the storability of longan fruits”
e6“the activity of cellulase, polygalacturonase, polyphenol oxidase, and lipoxygenase was significantly inhibited”
Claim · model-written summary
Higher Zn content in the ZnSO4-treated longan pericarp might help enhance resistance against microbial infection.
- Taxon
- longanDimocarpus longane0
- Outcome
- resistance against microbial infectione1
- Qualifier
- Higher Zn contente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“preharvest 0.2% zinc sulfate (ZnSO 4 ) spray on the storability of longan fruits”
e1“Higher Zn content in the ZnSO 4 ‐treated longan pericarp might help to enhance the resistance against microbial infection”
The same questions in other papers
application · quality: general · Dimocarpus longan (longan)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
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- negative
application · molecular: metabolites · Dimocarpus longan (longan)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- no effect
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1 paper more in this group
See all 5 papers →application · quality: phytochemicals · Dimocarpus longan (longan)Results agree
1 paper in the same direction as this paper
- positive
application · disease · Dimocarpus longan (longan)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.